package swg.utils;

public class Utils
{

	public static double arcTg(double y, double x)
	{
		double add =0;
		if(x<0){
			add=Math.PI;
		}
		else
		{
			if (y<0)
				add=2*Math.PI;
		}
		double res = Math.atan(y/x)+add;		
		return res;
	}
	
	public static String concat(Object... objs)
	{
		StringBuilder sb = new StringBuilder();
		for (Object obj : objs)
			sb.append(obj);
		return sb.toString();
	}
	

}
